<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>


<script>

    // let m = new Map();
    // m.set(['a'],123);
    // console.log(m.get(['a']));


    // let m = new Map();
    // let obj = ['a'];
    // m.set(obj,123);
    // console.log(m.get(obj));


    let m = new Map();
    m.set(1,'后盾人');
    m.set(1,'微信');
    console.log(m.get(1));


</script>


</body>
</html>